How To Fix /IWBEP/CM_MED031 - Association set '&1' has no proper entity sets assigned

/IWBEP/CM_MED031 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_MED -

• Message number: 031

• Message text: Association set '&1' has no proper entity sets assigned

Self-Explanatory Message

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/IWBEP/CM_MED031 - Details

• The SAP error message /IWBEP/CM_MED031 indicates that there is an issue with an association set in your OData service. Specifically, it states that the association set '&1' does not have any proper entity sets assigned to it. This can occur in the context of SAP Gateway and OData services when the metadata definition is not correctly configured.
  
  Cause:
  
  Missing Entity Sets: The association set defined in your OData model does not have any associated entity sets. This can happen if the entity sets were not defined or were incorrectly referenced.
  Incorrect Association Definition: The association itself may not be properly defined, leading to a situation where the system cannot find the necessary entity sets.
  Model 
  Configuration Issues: There may be issues in the way the OData model is configured, such as missing or incorrect references in the service definition.
  
  
  Solution:
  
  Check the Association Set: Review the definition of the association set in your OData service. Ensure